An NFL employee is among the wounded in Monday’s deadly shooting inside a Midtown skyscraper that housed the league’s offices. 

In a letter seen by The Post on Monday night, NFL commissioner Roger Goodell informed league employees that a staff member was “seriously injured” in the shooting incident at 345 Park Avenue, which resulted in the deaths of an off-duty NYPD officer and three others.

Goodell mentioned that the injured employee is currently hospitalized and in stable condition. He added that NFL staff are present at the hospital to support the injured person’s family. He also reassured league employees that “all of our employees are otherwise safe and accounted for.”

Chaos unfolded in Midtown when a gunman with a rifle, identified by police as Shane Tamura, entered the 44-story building where the NFL’s offices are located, as well as Blackstone and other businesses. He shot and killed four people before ending his own life.

Officials have not identified three of the victims, but released the name of the fallen NYPD officer during a late-night news conference as 36-year-old Didarul Islam. 

In his letter to NFL employees, Goodell praised law enforcement’s quick response and the heroism of Officer Islam. 

“We are deeply grateful to the law enforcement officers who responded to this threat quickly and decisively and to Officer Islam, who gave his life to protect others,” he wrote. 

The NFL offices occupy floors five through eight inside the Midtown building. 

NFL employees had been told to shelter in place when the chaos began, ESPN reported. 

City officials detailed the harrowing events that unfolded Monday evening at 345 Park Avenue during a press conference. 

Tamura, a 27-year-old Las Vegas resident, walked into the building at 6:30 p.m. armed with a rifle and began shooting in the lobby. 

He made his way to the 33rd floor, where he eventually took his own life. 

New York City Mayor Eric Adams and NYPD Commissioner Jessica Tisch were both visibly shaken during the press conference. 

Adams had told reporters that one man had been seriously injured and was in critical condition and four others had suffered minor injuries as they fled. 

No motive for the shooting is known, but it was noted that he had a “documented mental health history.”

“His motives are still under investigation. We are working to understand why he targeted this particular location,” Tisch said.